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Metabolic responses of benthic algae exposed to heavy metal stress.

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dc.contributor.authorPeña S., Enrique
dc.contributor.authorCantera K., Jaime Ricardo
dc.contributor.corporatenameUniversidad del Valle (Colombia)spa
dc.contributor.corporatenameUniversidad del Cauca (Colombia)spa
dc.contributor.researchgroupEcología de vestuarios y manglare
dc.contributor.researchgroupProductos naturales
dc.coverage.projectdates2002-2002spa
dc.coverage.spatialLitoral Pacifico (Colombia)
dc.date.accessioned2020-01-31T22:55:49Z
dc.date.accessioned2020-12-18T01:10:16Z
dc.date.available2020-01-31T22:55:49Z
dc.date.available2020-12-18T01:10:16Z
dc.date.issued2004-09
dc.description.abstractLas algas son un grupo de organismos vegetales muy heterogéneos en tamaño y forma y viven fundamentalmente en el agua. También pueden ocupar otros ambientes como el suelo, las rocas, y en la corteza de árboles. La importancia y uso de las algas por el hombre se ha centrado, en primer lugar, por el valor económico de sus productos derivados, ya sea en la alimentación humana o para aplicaciones industriales. Y en segundo valor por su valor ecológico como indicadoras de condiciones ambientales. (Apartes del texto).spa
dc.format.extent2 documentos.spa
dc.identifier.instnameColcienciasspa
dc.identifier.reponameRepositorio Colcienciasspa
dc.identifier.repourlhttp://colciencias.metabiblioteca.com.cospa
dc.identifier.urihttps://colciencias.metadirectorio.org/handle/11146/39922
dc.language.isospaspa
dc.relation.ispartofseriesInforme;
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.accessrightshttp://purl.org/coar/access_right/c_abf2spa
dc.rights.creativecommonshttps://creativecommons.org/licenses/by/4.0/spa
dc.subject.proposalAlgaespa
dc.subject.proposalHeavy metalsspa
dc.subject.proposalPlant monitorsspa
dc.subject.proposalStress physiogyspa
dc.titleMetabolic responses of benthic algae exposed to heavy metal stress.spa
dc.typeInforme de investigaciónspa
dc.type.coarhttp://purl.org/coar/resource_type/c_18wsspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/reportspa
dc.type.redcolhttps://purl.org/redcol/resource_type/PIDspa
dc.type.versioninfo:eu-repo/semantics/submittedVersionspa
dc.type.versionhttp://purl.org/coar/version/c_71e4c1898caa6e32spa
dc.type.versioninfo:eu-repo/semantics/submittedVersionspa
dcterms.audienceEstudiantes, Profesores, Comunidad científica colombiana, etc.spa
dspace.entity.typePublication
oaire.awardnumber1106-09-11246spa
oaire.funderidentifier.colciencias020 del 2002
oaire.fundernameDepartamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colcienciasspa
oaire.fundingstreamPrograma Nacional en Ciencias del Mar y los recursos hidrobiológicosspa
oaire.objetivesThe main goal of this joint proposal between Colombia Universidad del Valle, and Universidad del Cauca and Germany Universitat of Bremen, and AWI is to examine the role of algae on bioremoval processes for treating polluted coastal waters. Within this context, the project will assess the following experimental objectives : 1. To examine the algal stress physiology induced by metals accumulation by monitoring photosynthesis, respiration and growth rates in two dominant macroalgal species in a tropical polluted estuary (Buenaventura Bay), Pacific coast of Colombia. 2. To compare the bioaccumulation and uptake rates of heavy metals by Bostrychia calliptera, considered as a perennial species and by Rizoclunium riparium, considered as an opportunistic species. 3. To determine the spatial and temporal variability of bioaccumulation rates in field populations of two dominant macroalgal species in the estuary. 4. To evaluate the effect of some environmental factors (pH, light, and salinity) on the metal accumulation and uptake rates by the two selected species. Objectives 1 and 2 There are significant differences on the photosynthetic-respiration activity and growth rates between a perennial species exposed to different heavy metals concentration levels and a opportunistic species. Objective 3 Significant differences of bioaccumulation rates are found between species along a spatial and tempral gradient in the estuary. Objective 4 There are significant differences of metabolic responses between exposed and non-exposed plants growing under a salinity, light and pH conditions.spa

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